Nitrogen is a gas that does not look like anything really at all. If you want you can say nitrogen looks like air or oxygen it is clear, but it is not good for you. Nitrogen is a chemical which can b used as liquid nitrogen which freezes almost everything it will touch. Nitrogen can also be a green gas that is when it has been processed and wen through a process to make it not so dangerous. When nitrogen under goes this process it will lose all of its deadly properties such as poison etc.
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